Sildenafil is known as generic Viagra because it is not sold under the Viagra brand name. People take it in a dosage of 25, 50, or 100 milligrams (mg) per day. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor - the standard treatment for erectile dysfunction.

Viagra keeps working in your body for up to 5 hours. This means that if you're aroused, you should still be able to achieve an erection up to 4 hours after taking a dose of Viagra. Even though Viagra keeps working in your body for several hours, your erection shouldn't last this long.

To treat erectile dysfunction-ED, take this drug by mouth as directed by your doctor, usually as needed. Take sildenafil at least 30 minutes, but no more than 4 hours, before sexual activity (1 hour before is the most effective). Do not take more than once daily.

It can start working within 30 minutes, but it may take a couple hours for some people. However, one study on Viagra found that about 70% of men achieved erections in 30 minutes, and more than 80% of men achieved erections within 45 minutes. For most men, the effects of Viagra will start within an hour.

We all want flexibility and spontaneity in our sex lives, and we want to know that we can have sex when we want it. In this way, it's a pretty important question – and you'll be pleased by the answer. You can use Viagra daily, if that is how often you are having sex, so you should get all the spontaneity that you need.

Adults up to 65 years of age - 50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. Alternatively, the medicine may be taken 30 minutes to 4 hours before sexual intercourse. Your doctor may adjust your dose if needed.

Viagra should be taken an hour before you expect to take part in sexual activity. Although the drug has been shown to kick in as soon as 12 minutes after taking for some people, the average time is around 30-60 minutes. Think in advance about when you expect to have sex and take a pill then.

Both Viagra and the non-branded generic version, Sildenafil, are safe to take everyday, both in their 50mg and 100mg dosages. However, you really shouldn't be taking them daily if you are not intending to engage in sexual activity daily. Importantly, you shouldn't take Sildenafil or Viagra more than once a day.

Viagra is a useful form of treatment for erectile dysfunction. It is best to take the drug around 60 minutes before sexual activity, and its effects can last up to 4 hours. Viagra cannot cause an erection if there is a lack of sexual arousal.

Dosage for erectile dysfunction The recommended dosage of Viagra for erectile dysfunction (ED) is 50 mg, taken as needed about 1 hour before sexual activity. You can take it 30 minutes to 4 hours before sexual activity. And you shouldn't take more than one dose per day.

Viagra is absorbed quickly into your body. It can start working within 30 minutes, but it may take a couple hours for some people. However, one study on Viagra found that about 70% of men achieved erections in 30 minutes, and more than 80% of men achieved erections within 45 minutes.

Viagra should only be taken once a day.